1+1=2 so why is it so complicated to do the rest need help LOL! urgently

Cathie is making a dress with a sash. The sash needs to be 72.7 inches long, but Cathie's measuring tape is only in centimeters. Which of the following shows the number of centimeters, with the correct number of significant digits, that Cathie needs to measure in order for the sash to be 72.7 inches long? (1 inch = 2.54 centimeters)
A. 28.6
B. 185
C. 184.66
D. 28.62

Question

1+1=2 so why is it so complicated to do the rest need help LOL! urgently 



Cathie is making a dress with a sash. The sash needs to be 72.7 inches long, but Cathie's measuring tape is only in centimeters. Which of the following shows the number of centimeters, with the correct number of significant digits, that Cathie needs to measure in order for the sash to be 72.7 inches long? (1 inch = 2.54 centimeters)
	A.  	28.6
	B.  	185
	C.  	184.66
	D.  	28.62

anonymous · Answer

72.7 x 2.54 = 184.658 becomes 184.66 to two decimal places.
Unfortunately, "significant digits" is not the same as "decimal places." Since your inputs were to three digits, your answer should be to three digits, giving you 185. Tricky.

anonymous · Answer

thank u @douglaswinslowcooper may u help me with somemore